Standard TH42T Throttle Position Sensor

Throttle Position Sensor for GM and Import Applications

The Standard TH42T throttle position sensor provides a direct-fit replacement for vehicles that rely on accurate throttle angle input for engine management. Built with quality components for dependable operation, it uses a 3-terminal blade design with a female plug-in connector for straightforward OE-style replacement.

Compatible With Chevrolet, GMC, Pontiac, Isuzu, Buick, Cadillac, and Oldsmobile applications across a wide range of model years, including Chevrolet S10, Chevrolet Cavalier, GMC Sonoma, and Isuzu Rodeo. The TH42T is a practical choice when restoring throttle response and sensor signal consistency.

Key Features

• Throttle position sensor for emission control and engine management systems
• Female connector with 1 plug-in connection
• 3 male blade terminals for OE-style electrical interface
• Built from quality components for dependable service
• Direct replacement for many Chevrolet, GMC, Pontiac, Isuzu, and related applications
• Standard TH42T cross-references Standard Ignition TH42 and Beck/Arnley 158-0516 for the same application

Detailed Description

The Standard TH42T is a throttle position sensor used to report throttle opening to the engine control system. Accurate TPS signal input is important for fuel delivery, idle control, and throttle response, especially on older GM trucks, vans, and compact cars such as Chevrolet S10, Chevrolet Blazer, GMC Jimmy, Pontiac Sunfire, and Isuzu Rodeo. This part number, TH42T, is listed across a broad fitment range from 1987 through 2021, making it a useful OE-style replacement for many high-mileage vehicles.

With a plug-in female connector and 3 blade terminals, the TH42T is built to match the original electrical layout on supported applications. If your vehicle has throttle lag, unstable idle, or a diagnostic code tied to throttle position signal performance, replacing the sensor can restore proper input to the engine control module.

What It Helps Address

• Erratic or delayed throttle response
• Idle instability caused by incorrect throttle signal input
• Check engine lights related to throttle position sensor faults
• Hesitation during acceleration
• Signal dropouts from worn sensor contacts

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. The TH42T uses a female connector with 3 male blade terminals, so matching the original sensor configuration is important for proper fitment. After installation, clear any stored fault codes and confirm throttle signal readings with a scan tool if available.

Fits 2018-2021 Chevrolet Beat, N/A; Fits 2012-2018 Chevrolet Aveo, N/A; Fits 2011-2016 Chevrolet Spark, N/A; Fits 1991-1995 Chevrolet Camaro, N/A; Fits 1991-1995 GMC Sonoma, N/A; Fits 1998-2003 Isuzu Rodeo, N/A.

Quality Assurance

Standard manufactures this throttle position sensor with quality components for dependable operation. The TH42T is built as a replacement part for supported applications and is backed by Standard’s product engineering standards.